Back-band buckle.



No. 773,233- PATENTED 0GTL25, 1904.

J. B. SMITH. BAGK BAND BUCKLE.

APPLICATION FILED APR. 12, 1904.

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' 5 Elnvoul'oz LJ James B. 32222772.

Patented October .25, 1904.

PATENT EETcE.

JAMES B. SMITH, OF SAN SABA, TEXAS.

BACK-BAND BUCKLE.

SPECIFICATION forming part of Letters Patent No. 773,233, dated October25, 1904.

Application filed April 12, 1904. Serial No. 202,839. (No model.)

To It whom it may concern.-

Be it known that I, JAMns B. SMITH, a citizen of the United States,residing at San Saba, in the county of San Saba and State of Texas, haveinvented certain new and useful Improvements in Back-Band Buckles, ofwhich the following is a specification.

This invention relates to that type of backband buckles embodying theusual supportingframe upon which is mounted the latch member by whichthe adjustment of the buckle is made in varying the position of thetrace which is engaged and supported by the buckle.

The principal feature of the invention resides in the peculiar mountingof the latch device upon the frame of the buckle and in the provision ofspeciallydevised lock means, whereby the latch is held in its operativeposition.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means.

for effecting the result reference is to be had to the followingdescription and accompanying drawings.

TVhile the essential and characteristic features of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which- Figure1 is a perspective view of a buckle embodying my invention, the latchmember being thrown open to show more clearly the exact structure of theparts. Fig. 2 is a sec tional view showing the manner of securing thebuckle to the back-band. Fig. 3 is a plan View of the buckle, the latchbeing shown locked in operative position. Fig. 4 is a side elevation.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

In the drawings, the numeral 1, designates the back-band, which ispassed through transversely-disposed slots 2 in the base of thebuckle-frame 3. The buckle-frame 3 consists of a base-platet, which isprovided with the slots 2 above mentioned, a hook 5 being projected fromone end of the plate 4 to support the trace, which is engaged therewithin the usual manner. In engaging the track a link of the same, if achain trace is used, may be engaged with the hook 5. Extended outwardlyfrom the plate 1 of the frame of the buckle and. at the side portionsthereof are disposed extensions 6, integrally formed with the base,

plate, said extensions being provided with slots 7 The slots 7 areenlarged at corresponding ends, as shown at 8, to form bearingsreceiving journals 9 of the latch member 10. The latch 10 is providedwith an engaging member 11, which is preferably formed by bending theportion ofthe body of the latch against the under side thereof, as shownmost clearly in Fig. 1. The engaging member 11 is provided with aplurality of engaging teeth 12, the form of said engaging teeth beingsusceptible of modification dependent upon the material from which theback-band is made. of the usual construction commonly employed the teeth12 are preferably sharp, as illustutes an angular integral extension ofthe end portion of the latch, and this lock member 13 is adapted tocooperate with the hook 5 in the practical use of the invention. Thehook 5 is provided with a slot 14, extending from the end portions ofwhich are notches 15, which merge into the slot, as will be readilynoted. The length of the lock member 13 is substantially .the same asthe length of the slotted and notched portions 14 and 15 of the hook 5in order that the lock member may be passed through the hook member inits locking oo- For instance, should the back-band be operationtherewith. The lock member 13 is likewise provided in its ends withnotches 16,

and the width of that portion of the lock member between the notches 16is designed to be substantially the same as the length of the slot 14 ofthe hook 5, so that when the lock member has been passed through thehook 5 by a pivotal movement of the latch 10 a slidable movement may beimparted to the latch to cause the end portions of the lock member toengage beneath the hook 5. The slidable movement of the latch membercauses the journals thereof to move in the slots 7 of the extensions 6.When the lock member is engaged with the hook 5, the engaging member 11of the latch 10 positively engages the backband to fix the buckle at thenecessary adjustment thereon, and the weight of the trace which has beenpreviously engaged with the hook 5 pulling upon the frame of the buckletends to hold the latch engaged with the hook. The tendency of theweight of the trace to hold the latch engaged with the hook 5 is due tothe upward pulling force of the back-band as regards the engaging member11, such pulling force serving to hold the latch, with the journalsthereof, in the slots 7.

The buckle, as hereinbefore described, is very simply constructed,comprising two parts, essentially, which maybe stamped from sheet metalof suitable form in like manner.

Having thus described the invention, what is claimed as new is 1. In aback-band buckle, the combination of a frame, a hook, a latch pivotallyand slidably mounted upon the said frame, an engaging member projectedfrom the latch, and interlocking means between the latch and hook.

2. In a back-band buckle, the combination of a frame, a hook projectedfrom the frame and provided with a slot, a latch mounted upon the frame,a lock member carried by the latch and adapted to be received in theslot of the hook to interlock with said book.

3. In a back-band buckle, the combination of a frame, a hook projectedfrom the frame and provided with a slot, a latch pivotally and slidablymounted upon the frame, a lock member extended from the latch andadapted to be received by the slotted portion of the hook bya pivotalmovement of said latch, said lock member being adapted, to interlockWith the hook by a slidable movement of said latch.

in testimony whereof I affix my signature in presence of two Witnesses.

JAMES B. SMITH. [L. s]

Witnesses:

W. A. SMITH, R. W. BURLEsoN.

